So when Sondland told Taylor that he erred when saying no quid pro quo

[intrepidity]

viz-a-vis a meeting (in exchange for a public declaration by Zelenskyy), what he was actually saying was the qPq was for the meeting (with Trump) AND the security money!

So many quids and quos to keep track of.

Quids from Trump:
--a perfect phone call with Zelenskyy
--a meeting with Zelenskyy
--the nearly $400 million security aid

Quos from Zelensky:
--a committment from Zelenskyy to "investigate" (see next item)
--a letter (public pronouncement) describing Ukraine's intent to investigate:
----Burisma (code for Hunter Biden, proxy for Joe)
----Ukraine role in 2016 US election (code for letting Russia/Putin off the hook; casting doubt on the "Russher Hoax"; casting (more) doubt on Mueller Report; bringing DNC/servers into the mix, muddying the waters)

I have no doubt there was another Quo expected from Zelenskyy, albeit an unspoken one: to deliver substantive (pro-Trump) results from the investigation(s), whether or not fact-based.

[drray23]

1. That's why the process the Democrats have in place

That is, closed doors hearings is the way to go. People who are subpoenaed and answer to congress don't know what the others have/will say. If they lie, like sondland initially tried to do, they will be caught.